NASA's Curiosity rover has captured two stunning videos of solar eclipses from the surface of Mars, including one that shows the Red Planet's skies darkening dramatically above the 1-ton robot.

Curiosity recorded the two Mars solar eclipse videos on back-to-back days last month, Aug. 19 and Aug. 20. In both cases, Phobos — the larger of Mars' two tiny moons — blotted out much of the sun's disk.